Closure-releasing means for jars



W. 'M. SHELTON.

CLOSURE BELEAS ING MEANS FOR JARS.v

- APPLICATION FILED FEB. 13. 1920.

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Patehted Aug. 31,1920.

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WALTER. M. SHELTON, OF SOUTH RICHMOND, VIRGINIA.

CLOSURE-RELEASING- MEANS FOR JARS.

Specification of Letters Patent.

Patented A11 31, 1920.

Application filed February 13, 1920. Serial No. 358,353.

To all whom it may concern:

Be it known that I, WALTER M. SHEL'roN, a citizen of the United States, residing at South Richmond, in the county of 'Henrico and State of Virginia, have invented certain new and useful Improvements in Closure- Releasing Means for Jars, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to the art of jar closures and particularly to that class, wherein means is provided on the closure to be engaged by a device to permit the unscrewing of the closure from the jar.

An object of the invention is to provide a closure having means on its upper face or protruding through the closure and consisting of diametrically opposite headed lugs to be engaged by a device to permit the removal of the closure from the jar.

Another object consists in providing the headed lugs having their shanks beveled or inclined from the lower ends upward, so as to be engagedby a device for unscrewing the closure, the bevels or inclines acting to cause a firm contact of the device with the lugs, and to insure the heads (which are more or less sharpened) to bite into the device to hold it in place, while imparting a movement to the device to unscrew the closure.

. A further object is to provide a lever which may be used in connection with a flat surfaced closure, or with a closure which has a countersunk surface, from which the headed lugs project, so that a closure of either kind can be removed from the jar.

A still further object of the invention is to form headed lugs on any make of closure to facilitate the removal of the same from a jar by means of a lever to cooperate with the lugs.

While the design and construction at present illustrated and set forth is deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical form for commercial purposes, the invention may be susceptible to changes, and the right to these changes is claimed, provided they are comprehended within the scope of what is claimed.

The invention comprises further features and combination of parts, as will be hereinafter set forth, shown in the drawings and claimed.

In the drawings:

Figure 1 is a view of a jar, showing a of'the lug is adapted to bite into the cover removing device,

Fig. 4 is a detail view of a jar closure, showing cylindrical headed lugs formed thereon, instead ofthe lugs which are rectangular in cross section.

Fig. 5 is a view in elevation showing a pair of jars arranged so that their closures will abut, and

Fig. 6 is a detail sectional view of a jar with the closure having countersinks, upwardly from-which headed lugs rise to be engaged by an enlargement formed on the lever or tool.

Fig. 7 is a detail sectional view on line 7-7 of Fig. 4,

Fig. 8 is a detailview showing a modified form of jar closure and a modified arrangement of the diametrically oppositely arranged lugs.

Referring more especially to these drawings, 1 designates a portion of a jar which may be any conventional form or construction, and 2 denotes the closure, which is threaded upon the jar. Carried by the closure is a pair of. upwardly extending diametrically disposed headed lugs 3. The shanks of these lugs are angular in cross section as shown,.and furthermore, the lugs are inclined or beveled from the bottom upwardly to the head 4 as illustrated. Furthermore, the inclined faces of the shanks of the lugs are engaged by correspondingly beveled This closure removing lever may be rection to cause opposite edges of the lever to engage the lugs, the closure may be unscrewed from the jar. The shanks .of the lugs are beveled or inclined at right angles to the first inclinations, so as to permit the lever or device to engage in front of one of .the lugs and in the rear of the other lug.

bevels from the lower ends of the lugs up wardly, will cause the tool or lever to fit closely against the under part of the blade portion of the head of the lug, in order to.

insure a secure hold with the lug. In this way, the tool or lever does not require any notches to keep it from slipping out of engagement with the lugs.

In Fig. 5 a pair of jars is disclosed, one

' being placed above the other, and the lugs of 'one ar closure are arranged at right angles to the lugsof the other jar closure, to illustrate that in shipping a number of jars, or in storing the jars, it will be seen that quite anumber of jars can be conveniently packed and in such wise as to not take up much room. Furthermore, it will be seen that when two jars are arranged in such a manner, one above the other, with the headed lugs of one closure at right angles to those of the other, the jars may be grasped, one in each hand, and by imparting movement to one in one direction and to the other in the opposite direction the lugs will abut, and cause the closures to become loosened. After so loosening the closures the jars may be disposed in an upright position, and the closures thereafter completely removed. As' shown in the drawings, the headed lugs may be carried by a separate piece to that of the closure proper, and in this case the lugs are protruded through the top of the closure and the separate piece soldered to the under face of the closure. In order to permit the headed lugs to be protruded through the closure, the openings 15 in the closure are made large enough to permit of the passage of the heads, other-' wise the construction and the use of the device is identical to that of the other figures, and their description.

In Fig. 6 a tool or lever 16 is disclosed, adapted to be used in connection with the lugs to cause the removal of the closure of the jar. This tool or lever 16 has a lateral enlargement 17 especially designed for use in connection with closures shown in Fig. 6, wherein the top part of the closure is countersunk for the reception of the enlargement.

The invention having been set forth, what is claimed as new and useful is 1. As an article of manufacture, a jar'cl0- ward the closure and adapted to overlie and bite upon the tool to limit the tool in its upward movement and retain the tool in a firm engagement with the lugs.

2. As an article of manufacture, a jar closure having located upon its upper face at diametrically opposite points, lugs, the upper ends of said lugs having heads provided with laterally extending parts curved toward the closure.

In testimony whereof I hereunto afiix my signature.

WALTER M. SHELTON. 

